Base | Representation |
---|---|
bin | 10010101110101001… |
… | …101011010111100111 |
3 | 1220220111120101110110 |
4 | 102232221223113213 |
5 | 312141131432221 |
6 | 13123255424103 |
7 | 1311226302660 |
oct | 225651532747 |
9 | 56814511413 |
10 | 20110030311 |
11 | 858a651468 |
12 | 3a92985033 |
13 | 1b86420a27 |
14 | d8ab68367 |
15 | 7ca752776 |
hex | 4aea6b5e7 |
20110030311 has 32 divisors (see below), whose sum is σ = 30967630848. Its totient is φ = 11370182400.
The previous prime is 20110030307. The next prime is 20110030327. The reversal of 20110030311 is 11303001102.
It is not a de Polignac number, because 20110030311 - 22 = 20110030307 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20110030111) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5548846 + ... + 5552468.
It is an arithmetic number, because the mean of its divisors is an integer number (967738464).
Almost surely, 220110030311 is an apocalyptic number.
20110030311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20110030311 is a deficient number, since it is larger than the sum of its proper divisors (10857600537).
20110030311 is a wasteful number, since it uses less digits than its factorization.
20110030311 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6351.
The product of its (nonzero) digits is 18, while the sum is 12.
Adding to 20110030311 its reverse (11303001102), we get a palindrome (31413031413).
The spelling of 20110030311 in words is "twenty billion, one hundred ten million, thirty thousand, three hundred eleven".
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